| IMIsp Minerals Charmian Quarry | Blue Ridge Summit | PA | — | ◇ UNVERIFIED |
| JMJacam Mfg. - Organoclay Processing | Sterling | KS | — | ◇ UNVERIFIED |
| JMJamesville Mix Plant | Jamesville | NY | — | ◇ UNVERIFIED |
| JFJ F Shea CO INC | Redding | CA | — | ◇ UNVERIFIED |
| JSJf Shea Constr Fawndale Rock & Asphalt | Redding | CA | — | ◇ UNVERIFIED |
| JCJohn Crane INC | Crystal Lake | IL | — | ◇ UNVERIFIED |
| JBJoint Base Elmendorf-richardson | Anchorage | AK | — | ◇ UNVERIFIED |
| JGJtl Group Belgrade Dba Knife River - Belgrade | Belgrade | MT | — | ◇ UNVERIFIED |
| JGJtl Group Billings (dba - Knife River Billings) | Billings | MT | — | ◇ UNVERIFIED |
| JGJtl Group-wilkie Street | Missoula | MT | — | ◇ UNVERIFIED |
| KCKansas City Readymix Dba Talon Concrete & Aggregates | Kansas City | KS | — | ◇ UNVERIFIED |
| KCKarnak CORP | Fort Lauderdale | FL | — | ◇ UNVERIFIED |
| KDKentucky Department of Military Affairs | Greenville | KY | — | ◇ UNVERIFIED |
| KDKilgore Dba Peak Mat - Fraser Plants | Fraser Area | CO | — | ◇ UNVERIFIED |
| KRKing Road Materials Cordell Road Facility | Schenectady | NY | — | ◇ UNVERIFIED |
| KRKnife River - 777-2699 | Kalispell | MT | — | ◇ UNVERIFIED |
| KRKnife River Billings East Site | Billings | MT | — | ◇ UNVERIFIED |
| KRKnife River Casper | Casper | WY | — | ◇ UNVERIFIED |
| KRKnife River Cheyenne | Cheyenne | WY | — | ◇ UNVERIFIED |
| KRKnife River Corporation - Northwest | Dayton | OR | — | ◇ UNVERIFIED |
| KRKnife River Corporation - South Waco Asphalt Plant | Waco | TX | — | ◇ UNVERIFIED |
| KRKnife River Corp-south Bryan Asphalt Plant | Bryan | TX | — | ◇ UNVERIFIED |
| KRKnife River Farmington Asphalt | Beaverton | OR | — | ◇ UNVERIFIED |
| KRKnife River Kirtland Pit | Central Point | OR | — | ◇ UNVERIFIED |
| KRKnife River Materials | Klamath Falls | OR | — | ◇ UNVERIFIED |
| KRKnife River Materials Hamrick | Central Point | OR | — | ◇ UNVERIFIED |
| KRKnife River Materials Roseburg | Roseburg | OR | — | ◇ UNVERIFIED |
| KRKnife River Mountain West | Boise | ID | — | ◇ UNVERIFIED |
| KRKnife River Portland | Sherwood | OR | — | ◇ UNVERIFIED |
Knife River Prestress | Harrisburg | OR | — | ◇ UNVERIFIED |
| KRKnife River Redmond Asphalt | Redmond | OR | — | ◇ UNVERIFIED |
| KRKnife River Reed Sand and Gravel | Salem | OR | — | ◇ UNVERIFIED |
| KRKnife River Sundial Concrete | Troutdale | OR | — | ◇ UNVERIFIED |
| KMKoch Materials CO | Reading | PA | — | ◇ UNVERIFIED |
| KMKoch Materials CO Billings | Billings | MT | — | ◇ UNVERIFIED |
| KCKoski Construction CO (0204010008) | Ashtabula | OH | — | ◇ UNVERIFIED |
| LGLafarge Gordon Asphalt | Denver | CO | — | ◇ UNVERIFIED |
| LGLafarge Greeley Ready Mix & Asphalt Plant | Greeley | CO | — | ◇ UNVERIFIED |
| LRLaskey-clifton Rock Products | Coos Bay | OR | — | ◇ UNVERIFIED |
| LVLas Vegas Paving | Las Vegas | NV | — | ◇ UNVERIFIED |
| LVLas Vegas Paving | Henderson | NV | — | ◇ UNVERIFIED |
| LVLas Vegas Paving | Las Vegas | NV | — | ◇ UNVERIFIED |
| LVLas Vegas Paving | North Las Vegas | NV | — | ◇ UNVERIFIED |
| LVLas Vegas Paving - Kapex | Las Vegas | NV | — | ◇ UNVERIFIED |
| LMLattimore Materials CORP - Royse City Rmx | Royse City | TX | — | ◇ UNVERIFIED |
| LBLead Belt Materials CO INC Park Hills | Park Hills | MO | — | ◇ UNVERIFIED |
| LFLorena Facility | Lorena | TX | — | ◇ UNVERIFIED |
| LRLuna Road Hot Mix Asphalt Plant | Dallas | TX | — | ◇ UNVERIFIED |
| MHManchester Hot Mix Asphalt Facility - Do Not Use | Manchester | NY | — | ◇ UNVERIFIED |
| MHManor Hot Mix Plant | Manor | TX | — | ◇ UNVERIFIED |